<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <style type="text/css">
        *{margin: 0;padding: 0;}
        html,body,#popup{
            width: 250px;
            max-height: 405px;
            margin: 0;
            padding: 0;
        }
    </style>
</head>
<body>
     <div id="popup">
     </div>
</body>
</html>
